Dacryomya polaris

No picture of Dacryomya polaris was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dacryomya polaris, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
DacromyaPBDB
Diet
deposit feeder, suspension feederPBDB, for Nuculanidae
Life habit
infaunalPBDB, for Nuculanidae
Motility
facultatively mobilePBDB, for Nuculanidae
Vision
blindPBDB, for Bivalvia
Environment
coastal,inner shelf,outer shelf,oceanicPBDB, for Nuculanidae

Time the record covers

At least 1.9 million years on record.

The record covers at least 241.464 Mya to 239.48 Mya. No occurrence read is dated outside 247 Mya to 237 Mya.

Early Triassic — about 0 of 3 occurrencesMiddle Triassic — about 3 of 3 occurrencesMiddle TriassicLate Triassic — about 0 of 3 occurrences247–247 Mya — about 0.0 occurrences247–246 Mya — about 0.1 occurrences246–246 Mya — about 0.1 occurrences246–246 Mya — about 0.1 occurrences246–245 Mya — about 0.1 occurrences245–245 Mya — about 0.1 occurrences245–245 Mya — about 0.1 occurrences245–244 Mya — about 0.1 occurrences244–244 Mya — about 0.1 occurrences244–243 Mya — about 0.1 occurrences243–243 Mya — about 0.1 occurrences243–243 Mya — about 0.1 occurrences243–242 Mya — about 0.1 occurrences242–242 Mya — about 0.1 occurrences242–242 Mya — about 0.1 occurrences242–241 Mya — about 0.1 occurrences241–241 Mya — about 0.1 occurrences241–241 Mya — about 0.1 occurrences241–240 Mya — about 0.1 occurrences240–240 Mya — about 0.1 occurrences240–239 Mya — about 0.1 occurrences239–239 Mya — about 0.2 occurrences239–239 Mya — about 0.2 occurrences239–238 Mya — about 0.2 occurrences238–238 Mya — about 0.2 occurrences238–238 Mya — about 0.2 occurrences238–237 Mya — about 0.2 occurrences237–237 Mya — about 0.1 occurrences241.464 Mya239.48 Mya247.5 Mya236.5 Mya

3 occurrences of Dacryomya polaris on record, most of them in the Middle Triassic. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

3 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

1 formation

Ulakhan-Krest — 71.81°N, 127.24°EUlakhan-Krest — 71.74°N, 127.82°E

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The named rock units Dacryomya polaris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Dacryomya polaris and its relatives

Middle Triassic

Where Dacryomya polaris and its relatives were recorded in the Middle Triassic.

Found in the same rock

2 taxa

The Paleobiology Database records 1 site for Dacryomya polaris, and this reads all of them. The number is how many of those sites it was catalogued from too.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

2 references

Each of the 3 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

No picture of Dacryomya polaris was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dacryomya polaris, or no answer at all. This entry cannot say which.

No 3D scan of Dacryomya polaris was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itDacromya through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Kiparisova 1937)